All Faction players will know what I'm on about here. First of all. Hoppers on Factions don't work? They're disabled cause of people "duplicating". I've had a idea anyone who gets rich in like a hour of gear must be duplicating or if it's possible for @CypriotMerks enable hoppers to only allow brewing ingredients intro hoppers only, it'll stop all duping and people will finally be able to Auto Brew, building a Auto Brewer doesn't make you receive mcMMO so it's totally legal for potions.
I really vouch to get hoppers back,but sofar I know it's not possible to allow Some items and others not. It's more an On or Off setting